<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>计数器小案例</title>
</head>
<body>
    
    <div id="app">
        <h2>当前数量：{{conter}}</h2>
        <!-- <button v-on:click="conter++">+</button>
        <button v-on:click="conter--">-</button> -->
        
        <button v-on:click="add">+</button>
        <button v-on:click="sub">-</button>

    </div>

    <script src="../js/vue.js"></script>
    <script>
        const app=new Vue({
            el:"#app",
            data:{
                conter:0,
                message:'我是你爹'
            },
            methods:{
                add:function(){
                    this.conter++;
                    console.log("加了");
                },
                sub:function(){
                    this.conter--;
                    console.log("减了");
                }
            }
        })
    </script>
</body>
</html>